Expired50% confidenceFactExact time
LeanCopilot was developed by a team at Caltech and can be used within VS Code to call models such as GPT-4 and Claude to assist with completing proof steps.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/7/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/5/2026(expired)
Sources
Leanstral 1.5: AI-Assisted Formal Proofs, Making Lean Theorem Verification Accessible to All
hackernewshackernews7/3/2026
Related Claims
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